First real moped. I scored it in running shape for $250. cleaned up and painted. Side panels removed, better carb, rebuilt clutch, and the exhaust has been drilled out a bit.
Josiah McCoy:
...504 came with either Bosch, cev, or motoplat ignition. As far as jet size...def not 90. Prob low to mid 60s range especially with all stock aside from the drilled pipe.
Adam Arsenault:
Not a whole lot of improvement, but I haven't done much fine tuning yet. I'm waiting for warmer weather. It's a Bosch. Says so on the plate and flywheel.
NB0TT:
How much of an improvement would you say you got out of the new carb and drilled out pipe?
Also are you sure your magneto is Bosch? I've got a KTM Foxi with 504 that is CEV.